In addition to our technical support (e.g. via chat), you’ll find resources on our website that may help you with your design using Dlubal Software.
Frequently Asked Questions (FAQ)
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The "Intermediate Results" entry in the Results navigator of RF-CONCRETE Members or CONCRETE is only displayed if "a" certain result type has been selected (for example As, req, above ).
As soon as several results are displayed (for example As, erf, top and As, erf, bottom ), the "Intermediate Results" entry is no longer available.
The intermediate results refer specifically to one calculation (e.g. As, T ) and cannot be generated for several result types at the same time.
If the results are to be displayed at a specific location of the cross-section, the element must be divided at this location.
An element can be divided by right-clicking the element and selecting the "Split Element" function in the shortcut menu (Figure 1).
For example, if you want to determine the stress at a distance s = 32.5 mm from the start of element 1, you have to divide element 1 at this point. This is also shown in the video.
This change is made in the Display navigator under "Results" → "Deformation" → "Members" → "Lines", see Figure 1.
AnswerPlease check if you have accidentally docked the panel at the bottom of the screen.
If this is the case, you can undock the panel as shown in the video.
Regarding the analytical calculation of SLS, you should note that the calculation is based on a provided or applied reinforcement for SLS.
The provided reinforcement can result, for example, from the ultimate limit state design, the defined basic reinforcement, or the automatically determined required reinforcement for SLS. The reinforcement applied to the SLS design can be displayed graphically.
If there are too small or no reinforcement results from ULS or the basic reinforcement in some areas and no required reinforcement is determined for SLS at the same time, the serviceability limit state design is performed without or with too small reinforcement. In this context, very high results may occur during the deformation, for example. Also, there may be poor convergence.
It is necessary to ensure that there is a reinforcement in each area of the structural system. For this, you can apply a basic reinforcement or a minimum reinforcement, for example.
It is possible to use the "isolines" instead of displaying the results with "isobands" in the graphic.
First, switch to the "Isolines" display.
Then, you can additionally set in the Display navigator that the "Result Values Defined Automatically" should be displayed for the isolines.
AnswerYes, the results can be partially exported. The export function is available for the result tables in the add-on module (as of Window 2.1).Using the example of the steel stress in SLS, it would be possible to only perform the steel stress analysis and then export the table in Window 3.3, for example.When displaying the table in Window 3.3, you can choose between FE mesh points and grid points. The grid can be adjusted as a property of the surface.
The stresses of a surface can be displayed via the COM interface. First, you need the interface for the model (IModel) and then the interface for the calculation (ICalculation2). Using this interface, you can get the interface for the results (IResults2):Sub stresses_surfaces_example()Dim iApp As RFEM5.ApplicationDim iModel As RFEM5.modelSet iModel = GetObject(, "RFEM5.Model")On Error GoTo EIf Not iModel Is Nothing Then' get interface from modelSet iApp = iModel.GetApplicationiApp.LockLicense' get interface from calculationDim iCalc As RFEM5.ICalculation2Set iCalc = iModel.GetCalculation' get interface from results from loadcase 1Dim iRes As RFEM5.IResults2Set iRes = iCalc.GetResultsInFeNodes(LoadCaseType, 1)' get equivalent stressesDim str_equ() As RFEM5.SurfaceEquivalentStressesstr_equ = iRes.GetSurfaceEquivalentStresses(1, AtNo, VonMisesHypothesis)End IfE:If Err.Number <> 0 ThenMsgBox Err.Number & " " & Err.descriptionEnd IfIf Not iApp Is Nothing TheniApp.UnlockLicenseEnd If
The GetSurfaceEquivalentStresses function requires the specification of the calculation hypothesis. In this case, the results of the von Mises stress are displayed. Please note that the COM interface uses SI units so the stress is transferred in N/m².
AnswerThe axis orientation of the surfaces in your model is probably not adjusted. For a circular surface, it is recommended to specify the orientation of the axes for surfaces or the axes for results of the surfaces.You can adjust the axes for each surface. In the "Axes" tab, you can find the subtabs "Axes for Input" and "Axes for Results."The "Axes for Results" tab adjusts the axes of the surface for the results. Here you can specify the orientation of the axes using a point, for example. A great advantage of this method is that the results are not deleted when adjusting the axes.The "Axes for Input" tab adjusts the axes of the surface for the orientation and results. Here you can specify the orientation of the axes on a line, for example.The results of both axis adjustments are the same. For symmetric loading, the expected symmetric results are provided.
AnswerIn contrast to the old version, the latest version includes new additions and improvements in the functionality as well as revisions. Therefore, the results of the new version would still not be viewable in the Viewer of the old version.
In general, the functioning of the Dlubal Software program versions is not retrograde. This is only valid for the normal versions for viewers.The best solution is to install the viewer of the same RFEM version on which the results have been saved.
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Wind Simulation & Wind Load Generation
With the stand-alone program RWIND Simulation, wind flows around simple or complex structures can be simulated by means of a digital wind tunnel.
The generated wind loads acting on these objects can be imported to RFEM or RSTAB.
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